I've got a Kona Explosif of around 2005, the one with the slidey drop-outs. Not ridden it much in the last year due to a back op but used it round Thetford last week and had a great time on it.
Think I will be out on it a little more now.
No pics I'm afraid, only when it has those suspension fork things on it - lol.

I started with ss'ing my 93 kona explosif, then got a cheap on-one inbred (slot dropout) with carbon forks, which has been great fun and nearly indestructible.

For mountain mayhem i swapped the forks and ss bits onto my geared tinbred, which was amazing, very light and fast and still comfortable with an amazing degree of control with the rigid forks. I was zooming round the mayhem course, and our team ended up 2nd ss and something like 15th overall!

Now keeping an eye out for a singlespeed tinbred frame so i can do it 'properly'

Have this, to be honest after the intial wow this is cool, I got a bit disheartened with it. Just such hard work to get anywhere and I'm such a lazy fecker. Really good for quick blastes on mid week night rides, but thats about it. Still looks cool though

Rode one years ago, though my 'single'-speed bikes usually had two chainrings and a rear mech tensioner for on-/off-road or climbing / everything else use.

Don't think my back would stand for a true singlespeed these days unless it was pretty flat. I tried 1x8 speed too, but found the chain was always falling off the chainring without some sort of device to keep it in place.

It's not built because I took it apart a couple of years ago and never re-built it, but I have a rigid fixed wheel mountain bike. The frame was built by a mate who was going into frame building, and is the same geometry as my rigid '94 Zaskar. I really must re-build and ride it.